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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 533 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  2. 2.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands yellow, violet, red. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does green stand for?
  5. 5.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) brown-grey-black (b) grey-brown-black (c) grey-brown-brown (d) white-brown-black
  8. 8.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 25 % (d) 0 %
  13. 13.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) red-blue-red (b) blue-red-brown (c) red-blue-brown (d) red-blue-black
  17. 17.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does white stand for?
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-brown (b) green-white-red (c) white-green-brown (d) green-white-black
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-brown-brown (b) red-brown-black (c) brown-red-black (d) brown-brown-black
  24. 24.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-brown (b) red-orange-brown (c) red-red-black (d) red-red-red
  26. 26.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands white, brown, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) yellow-blue-yellow (b) blue-yellow-orange (c) yellow-blue-red (d) yellow-blue-orange
  31. 31.🌈 In the resistor colour code, which number does black stand for?
  32. 32.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does yellow stand for?
  34. 34.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does orange stand for?
  36. 36.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands green, white, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-brown (b) green-black-red (c) blue-green-brown (d) green-black-black
  40. 40.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 740
  3. 4700
  4. 5
  5. 900
  6. 54
  7. grey-brown-black
  8. 18000
  9. 98
  10. 520
  11. 900
  12. 5 %
  13. 12
  14. 9.2
  15. 88
  16. red-blue-brown
  17. 51
  18. 8.8
  19. 96000
  20. 9
  21. 1
  22. green-white-brown
  23. brown-brown-black
  24. 69
  25. red-red-brown
  26. 100
  27. 91000
  28. 810
  29. 760
  30. yellow-blue-orange
  31. 0
  32. 870
  33. 4
  34. 390
  35. 3
  36. 5.8
  37. 590
  38. 99
  39. green-black-brown
  40. 18

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